TCEQ: Class D Water Operator License | 100% Correct Answers | Verified | Latest 2024 Vers, Exams of Water Resources Planning and Management

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TCEQ: Class D Water Operator License | 100% Correct Answers | Verified | Latest 2024 Version T/F: Operators have a responsibility to provide drinking water that meets Federal and State Standards - ✔✔True T/F: Water must be disinfected, delivered at inadequate pressure and be ample in quantity - ✔✔False (True if adequate instead of inadequate) T/F: Utility employees should guard the water supply and facilities from contamination, public tours, and even terrorism - ✔✔False T/F: The state requires bacteriological sample results to be kept 2 years. - ✔✔False (True if 5 years) T/F: The state requires chemical analysis to be kept at least 10 years. - ✔✔True T/F: The EPA requires a water system to keep a copy of each consumer confidence report at least 5 years. - ✔✔True T/F: A public water system provides the public with piped water for human consumption, serves at least 15 service connections and regularly serves at least 25 individuals daily at least 60 days out of the year - ✔✔True The water utility field touches everyone because... A)water used for recreation B)water used for agriculture C)water used for industry D)water is essential to life and health - ✔✔D)water essential to life and health Thew water utility employee should remember customers are entitled to... A)courteous treatment B)abuse public servants C)always be right D)answers to questions about water E)A&D - ✔✔E Public systems utilizing ground water serving less than ___ connections on purchase treated water only are not required to compile ___ reports. A)50, yearly B) 150, yearly C) 50, monthly D) 100, monthly - ✔✔D Job training for water utility operators is available through the... A)American Water Works Association B)TX Water Utilities Association C)TX Engineering Extension Service D)all listed - ✔✔D In TX, water operator license is administered by the... A)EPA B)TNRCC -- TCEQ C)AWWA D)TWUA - ✔✔B All pubic water systems are required to employ certified operators even if the system only ___ treated water bought from another source. A)Chlorites T/F: Public relations (PR) is the relationship between you, the water utility employee, and the mayor. - ✔✔F T/F: The keys to good customer relations are 1) everything the utility does is PR, 2) customers are entitled to courteous treatment, 3) every employee is a PR person - ✔✔True T/F: Meter readers are the persons with whom customers have the least contact. - ✔✔False T/F: Meter readers can be ambassadors of goodwill. - ✔✔True T/F: Maintenance crews can warn customers of service interruptions and provide signs and barriers to protect the public. - ✔✔True T/F: The plant operator is responsible for making the water safe to drink and use. - ✔✔True T/F: Water bills should be accurate, itemized, neat and the customer's option to pay. - ✔✔False T/F: It is not important that the utility have a sense of pride and professionalism. - ✔✔False T/F: Employees should be kept informed of utility plans and policies. - ✔✔True T/F: Complaints should be treating as "griping" and investigated as a last priority. - ✔✔False In small water systems, the operator is often... A)a meter reader, repair crew, and pump operator B)highest paid employee C)college graduate D)all listed - ✔✔A "Stuffers" sent to customers in billing statements may contain... A)departments to call for service B)explanations of utility policy C)history of the utility D)tips on water conservation E)all of the above - ✔✔E Delinquent payment notices should be... A) tactful + tasteful B)mailed in envelope C)business-like D)all listed - ✔✔D The EPA requires community water systems to provide customers. A)weekly B)monthly C)yearly D)none listed - ✔✔C If these reporters are attractive and easy to ___, they can build goodwill and trust with the customer A)misinterpret B)misconstrue C)misunderstand D)understand - ✔✔D Good treatment of employees include fair wages, benefits, and ___ working conditions. A)tense B)safe C)hazardous D)insecure - ✔✔B After action is taken on a complaint, follow up with a phone call or ___ to make sure everything is satisfactory. A)post card B)e-mail C)letter D)A&B E)A,B,&C - ✔✔E Water plant facilities should be kept neat and clean to... A)indicate your professional attitude B)keep public support C)keep confidence in the water quality D)all listed - ✔✔D Listen to special requests and seek solutions to oblige the customer within... A)utility policy B)5 working days C)tradition D)secrecy - ✔✔A Treat customers as though there was another water utility across the street competing for your... A)job b)employees c)customers d)revenue - ✔✔NO ANSWER GIVEN T/F: Suspended solids can be removed by filtering and dissolved solids cannot. - ✔✔True T/F: Common gases found in water include hydrogen sulfide, carbon dioxide, methane, and sodium chloride. - ✔✔False Chemically, water is made of... A)one atom of water B)one atom of hydrogen and one atom of oxygen C)two atoms of hydrogen and one atom of oxygen D)one atom of hydrogen and two atoms of oxygen - ✔✔C The hydrologic cycle is ... A)nature's way of recycling water B)equipment used to measure distances C)the way water filters through the eearth D)the process by which water runs into rivers and lakes - ✔✔A The quality standard for all public water supplies is based on the use of water for... A)fire fighting B)drinking C)bathing D)swimming - ✔✔B One of the most important purposes of a public water supply is... A)swimming B)landscape watering C)car washing D)firefighting - ✔✔D Organic matter includes... A)sand B)plants, animals, and humans C)minerals D)all listed - ✔✔B The most important treatment process is ___, which destroys disease-causing organisms. A)filtration B)disinfection C)softening D)fluoridation - ✔✔B Public water systems are required to compile a monthly report showing... A)rate increases B)accidents C)dates of dead end flushing D)disciplinary action - ✔✔C Most ground water is relatively free of suspended matter, but ___ can be a major problem in surface water. A)turbidity B)gases C)sand D)hot water - ✔✔A Color in a public water supply should be... A)at least 15 units B)under 3 units C)less than 15 units D)red - ✔✔C Chemical characteristics include hardness, pH, solids, and... A)gases B)taste C)temperature D)color - ✔✔A Water is considered hard when it exceeds ___ mg/l of calcium carbonate. A)0.1 B)10 C)100 D)1000 - ✔✔C A gallon of water weighs 8/34 pounds and 1 mg/l equal 1 ___. A)million grams B)thousand grams C)part per thousand D)part per million - ✔✔D Hydrogen sulfide is heavier than air, colorless, flammable, toxic, and has a ___ odor. A)sweet B)rotten egg C)rotten fish D)fragrant - ✔✔B Excessive nitrates in drinking water can cause ___ syndrome in infants. A)bad baby A)microorganics B)microorganisms C)corrosives D)dissolved solids - ✔✔A Water table wells are usually ___ wells. A)deep wells B)artesian C)shallow D)all listed - ✔✔C In a water table well, the cone of depression is a ___ area around the well. A)dewatered B)depressed C)deflated D)developed - ✔✔A A sanitary control easement must cover land w/in ___ ft of public well. A)15000 B)1500 C)150 D)15 - ✔✔C Livestock and septic tanks must be no closer than ___ ft to public well. A)5000 B)500 C)50 D)5 - ✔✔C Underground fuel tanks and septic drainage fields must be at least ___ ft from a public well. A)15000 B)1500 C)150 D)15 - ✔✔C Feedlots, sewage treatment plants, and landfills must be at least ___ feet from a public well. A)50 B)500 C)5000 D)50,000 - ✔✔B A well may be developed by surging, overpumping, jetting, and... A)backwashing B)backflushing C)backflooding D)backfilling - ✔✔A To disinfect a new well, a chlorine dosage of at least ___ mg/L of chlorine is required. A)5 B)10 C)25 D)50 - ✔✔D A sample for physical and chemical analysis must be taken after ___ hours of pumping. A)3 B)6 C)36 D)63 - ✔✔C Changes in well water levels or the volume of water produced can alert the operator to a drop in the water table, screen stoppage or damage to the ___. A)sealing block B)pump C)vent D)sampling faucet - ✔✔B Common deep well pumps include the ___ and the vertical turbine. A)submarine B)subsidence C)submission D)submersible - ✔✔D Gases such as methane, carbon dioxide, and hydrogen sulfide are reduced by ___. A)backwashing B)sequestering C)aeration D)softening - ✔✔C T/F: Water from rivers, lakes, reservoirs is called ground water. - ✔✔False T/F: 50% of public water systems use surface water. - ✔✔False (True if 25%) T/F: Boat ramps, marinas, docks should not be located within 1000 ft of a water intake. - ✔✔True D)0.01 to 0.05 mg/l - ✔✔C The most effective treatment for taste and odor is adsorption with ___. A)activated carbon B)chlorine C)ferric chloride D)copper sulfate - ✔✔A The process of using chemicals to clot particles together is called... A)sedimentation B)filtration C)coagulation and flocculation D)all listed - ✔✔C Lime is applied to water to ___... A)coat water mains B)adjust pH or alkalinity C)prevent tooth decay D)prevent algae - ✔✔B Detention time in sedimentation basins must be at least ___ hours to allow floc at settle. A) 6 B) 5 C) 4 D)3 - ✔✔A Factors effecting sedimentation basins are the weight of floc, ___, detention time, and short circuiting. A)water temp B)water velocity C)taste and odor D)a&b - ✔✔A Backwashing should expand the filter bed by ___ percent. A)5 to 10 B)15 to 20 C)25 to 30 D)30 to 50 - ✔✔D A common filter problem is ___, prevented by proper backwashing. A)ice B)mud balls C)detention time D)coagulation - ✔✔B Chemicals used disinfection are chloramine, chlorine, chlorine dioxide, and ___. A)ferrous sulfate B)copper sulfate C)activated carbon D)ozone - ✔✔D T/F: Disinfection destroys disease-causing microorganisms called pathogens. - ✔✔True T/F: Disinfection destroys pathogens without sterilizing the water. - ✔✔True T/F: Waterborne pathogens live and grow in the intestines of infected people. - ✔✔True T/F: Infected fecal matter entering a water supply transmits pathogens to healthy people. - ✔✔True T/F: Some disease transmitted by unsafe water include typhoid, dysentery, cholera, measles, polio, cryptosporidiosis. - ✔✔False (True if list did not include measles) T/F: Each water sample is tested for all waterborne diseases. - ✔✔False T/F: Water samples are tested for microorganisms that indicate fecal contamination. - ✔✔True T/F: The total coliform group of viruses are the indicators of fecal contamination. - ✔✔False T/F: Fecal coliform live in the intestines of humans and warm-blooded animals. - ✔✔True T/F: The presence of fecal coliform in a water sample indicates intestinal waste is in the sample, but there is no risk of disease - ✔✔False (no risk is questionable) T/F: The number of water taps served by the system determines the minimum number of bacteriological samples. - ✔✔False (should be related to population) T/F: the purpose of the sample-siting plan is to assure bacteriological samples are taken from houses. - ✔✔False (should be representative) T/F: Sodium thiosulfate is put into bacteriological sample bottles to sterilize - ✔✔False (True if it said sodium thiosulfate neutralize Cl2) T/F: Before taking a bacteriological sample, flush the service line. - ✔✔True T/F: The sample bottle should be completely filled with sample water. - ✔✔False (True if it said fill to 100 mL) At room temperature chlorine gas is greenish-yellow, has pungent odor, is ___ times heavier than air. A)2 B)1.5 C)2.5 D)3 - ✔✔C The maximum sustained gas withdrawal rate from 150 lb cylinders (vacuum transmission) is ___ lb/day per degree F A)4 B)3 C)2 D)1 - ✔✔D Disinfection capacity for drinking water must be ___ percent greater than the highest expected dosage. A)30 B)40 C)50 D)60 - ✔✔C Small water systems often use ___ to disinfect their water supply. A)hydrochlorinators B)hypochlorinators C)hyperchlorinators D)hydrachlorinators - ✔✔B Hypochlorinators consist on of a mixing tank, water, ___, hypochlorite or ___ hypochlorite and a chemical pump. A)sodium/calcium B)salt/lime C)hydrogen/oxygen D)green/yellow - ✔✔A Gas chlorinators use a rotameter to meter chlorine in ___ or grams/hr. A)lbs/minute B)lbs/hour C)lbs/day D)gal/minute - ✔✔C Dosage is the amount of chemical applied, demand is the amount of chemical used up, ___ is the amount of chemical remaining after reacting with demand. A)breakpoint B)chloramine C)residual D)combined - ✔✔C Minimum chlorine residuals of ________ (free) and ________ (combined) are required in the far reaches of the distribution system. A)0.5/0.2 B)5/2 C)2/5 D)0.2/0.5 - ✔✔D The DPD and chlorine reaction turns the water a ___ color. A)green to blue B)pink to read C)yellow to red D)red to brown - ✔✔B T/F: Storage facilities equalize demand on water supply. - ✔✔True T/F: Storage allows uniform pump rates, supplies water for fire fighting and provides time for disinfection. - ✔✔True T/F: Ground storage at a surface water treatment plant is a called a clean well. - ✔✔False (True if it was clear instead of clean) T/F: The TNRCC requires storage tanks to have covered vents, an airtight cover, over runs and and escape hatches. - ✔✔False (True if overrun was not mentioned) T/F: If ground storage is the only storage, capacity must be 20 gallons per connection. Otherwise total storage capacity (elevated storage included) must be 300 gallons per connection. - ✔✔False T/F: If a 30 inch diameter access opening is not provided in a storage tank the primary roof access must not be less than 30 inches. - ✔✔True T/F: Storage must be painted, disinfected, and maintained according to OSHA standards. - ✔✔False (True if it was AWWA instead of OSHA) T/F: No paint, coating, or waxing containing lead is allowed. - ✔✔True T/F: Coating for contact with potable water must be approved by the EPA, National Sanitation foundation, or the Food and Drug Administration. - ✔✔True T/F: Elevated storage is tank, usually steel, supported above ground on a tower. - ✔✔True T/F: Pressure from an elevated tank is maintained by the height of the water column. - ✔✔True T/F: Each foot of water column produces 0.334 psi. - ✔✔False (True if it said 0.433 psi instead of 0.334) C) 8 D) 6 - ✔✔A The top of a pipe in a trench must have at least ___ inches of cover. A)30 B)24 C)18 D)12 - ✔✔B Do not work in a trench ___ feet or deeper unless it is protected from cave-in. A)7 B)6 C)5 D)4 - ✔✔C Using timber, plywood, or commercial devices to support an excavation is known as... A)sloping B)shoring C)sheeting D)bracing - ✔✔B Shoring is not necessary if the trench walls are sloped to the maximum allowable ___. A)slope B)recline D)dispose D)repose - ✔✔D Place soil banks at least ___ feet from the excavation. A)4 B)3 C)2 D)1 - ✔✔C Dose new mains with ___ mg/l or more of chlorine at least ___ hours. A)50, 24 B)24, 50 C)500, 24 D)5, 24 - ✔✔A Do not place a main into service until a bacteriological sample is tested with ___ results. A)positive B)no C)negative D)doubtful - ✔✔C One sample is required for each ___ feet of completed main. A)10,000 B)100 C)10 D)1,000 - ✔✔D Flushing reduces slime and scale buildup, reduces red water complaints, brings chlorinated water to contaminated areas and removes ___-reducing materials from the system. A)chlorine B)iron C)calcium D)nitrate - ✔✔A Closing a hydrant valve too fast can cause water ___. A)slammer B)boomer C)mallet D)hammer - ✔✔D ___ is a buildup of oxidized iron, calcium carbonate or other chemicals in mains. A)tuberculosis B)tuberculation C)turbidity D)slime - ✔✔B Factors that make water more corrosive are low pH, dissolved oxygen, and ___. A)free chlorine B)combined chlorine C)free iron D)combined minerals - ✔✔A Repairing a leak under some pressure has an advantage of... A)interrupting service B)reducing contamination risk C)increasing air in the main D)ensuring the repair fails under service - ✔✔B A cross connection is a physical connection between a public water supply and 1)another supply of unknown or questionable quality 2)any source that may contain contamination 3) any water ___. A)safe to drink B)treated to potable quality D)squirrel cage induction - ✔✔D T/F: Nine out of 10 accidents result from unsafe acts of the person injured or someone else. - ✔✔True T/F: The federal law having the greatest impact on workplace safety is the Occupational Safety and Health Act. - ✔✔True T/F: The TX Hazard Communication Act is known as the "Right to Work" law. - ✔✔False (True if it was the "Right to Know" law) T/F: A safety program must start from the bottom, then extend to the top official. - ✔✔False (True if it said it must start at the top then extend to the bottom official) T/F: Everyone must participate in a safety program or it will fail. - ✔✔True T/F: A confined space is 1)large enough to enter and do work, 2) has limited or restricted entry or exit), and 3)is not designed for continuous occupancy. - ✔✔True T/F: The #1 cause of death in a confined space is lack of oxygen. - ✔✔True T/F: Combustible gases include methane, hydrogen sulfide, and carbon dioxide. - ✔✔False T/F: Cockroaches can adapt to conditions that will kill a human. - ✔✔True T/F: After evaluation, confined spaces are designated "entry allowed" or "entry denied". - ✔✔False When entering a "permit required" space personnel must wear a harness and be attached to a... A)life B)retrieval C)tow D)drag - ✔✔B OSHA requires an anti-fall line if a portable ladder or ___ is not used. A)shoring B)trench boxes C)stairs D)ropes - ✔✔C When a vertical entry of ___ feet or more is made, the retrieval line must be attached to a mechanical retrieval device. A)5 B)4 C)3 D)50 - ✔✔A Private employers, such as contractors, must follow ___ excavation and trenching rules. A)OSHA B)AWWA C)TNRCC (TCEQ) D)EPA - ✔✔A When an excavation is ___ feet or deeper a means of cave-in protection is required. A)2 B)3 C)4 D)5 - ✔✔D Shoring uses timbers or hydraulic wedges and ___. A)sheeting B)nails C)steel cables D)ropes - ✔✔A Benching is a type of sloping done by cutting stair steps in the trench wall while maintaining the maximum allowable ___. A)spoil B)slip C)slide D)slope - ✔✔D Sloping cuts trench walls to the angle that overcomes collapsing... A)soil B)spoil C)pressure D)tension - ✔✔C OSHA classifies soil into four categories: ___ rock, class A, class B and class C. A)hard B)stable C)soft D)sharp - ✔✔B If the soil is previously disturbed, it is... A)stable rock B)class A C)class B D)class C - ✔✔D